====================================== | [ 25.564432][ T1087] softirqs last disabled at (21625): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 25.564434][ T1087] Preemption disabled at: | [ 25.564435][ T1087] 0x0 | [ 25.564445][ T1087] Tainted: [W]=WARN [ 25.564446][ T1087] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.564448][ T1087] Call Trace: [ 25.564450][ T1087] [ 25.564451][ T1087] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.564458][ T1087] __might_resched.cold (kernel/sched/core.c:9234) [ 25.564462][ T1087] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.564466][ T1087] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.564471][ T1087] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 25.564472][ T1087] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.564479][ T1087] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 25.564482][ T1087] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.564485][ T1087] put_chars (drivers/char/virtio_console.c:1176) [ 25.564488][ T1087] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.564489][ T1087] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.564492][ T1087] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.564498][ T1087] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.564505][ T1087] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.564508][ T1087] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.564510][ T1087] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.564514][ T1087] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.564518][ T1087] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.564520][ T1087] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 25.564523][ T1087] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.564525][ T1087] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.564529][ T1087] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.564533][ T1087] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.564535][ T1087] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.564540][ T1087] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.564543][ T1087] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.564545][ T1087] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.564546][ T1087] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 25.564550][ T1087] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.564552][ T1087] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.564555][ T1087] vprintk_emit (kernel/printk/printk.c:2479) [ 25.564558][ T1087] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.564559][ T1087] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 25.564562][ T1087] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.564566][ T1087] _printk (kernel/printk/printk.c:2504) [ 25.564569][ T1087] ? snapshot_read.cold (user.c:?) [ 25.564572][ T1087] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 25.564574][ T1087] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 25.564578][ T1087] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 25.564581][ T1087] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 25.564585][ T1087] ? exit_notify (kernel/exit.c:780) [ 25.564586][ T1087] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.564589][ T1087] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.564592][ T1087] do_group_exit (kernel/exit.c:1151) [ 25.564595][ T1087] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 25.564597][ T1087] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 25.564600][ T1087] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.564604][ T1087] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.564607][ T1087] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.564609][ T1087] RIP: 0033:0x7fd541a4a1b8 [ 25.564611][ T1087] Code: Unable to access opcode bytes at 0x7fd541a4a18e. Code starting with the faulting instruction =========================================== [ 25.564612][ T1087] RSP: 002b:00007ffdd7aa7818 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 25.564615][ T1087] RAX: ffffffffffffffda RBX: 00007fd541b7af88 RCX: 00007fd541a4a1b8 [ 25.564616][ T1087] RDX: 00007fd5411e03c8 RSI: ffffffffffffffb0 RDI: 0000000000000001 [ 25.564617][ T1087] RBP: 00007ffdd7aa7870 R08: 0000000000000000 R09: 0000000000000000 [ 25.564618][ T1087] R10: 00007ffdd7aa7650 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print